期刊文献+

扩频系统中多普勒频偏快速估计算法的性能分析 被引量:4

The Performance of a Fast Doppler Shift Estimation Technique in DSSS System
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摘要 研究了直接序列扩频系统中基于DFT技术的大多普勒频偏估计算法。在分析DFT处理前后信噪比,DFT输出信号包络概率分布函数的基础上,推导了多普勒频偏检测的虚警概率、检测门限、检测概率和信噪比之间的关系。并结合某特定LEO卫星通信系统应用,得到了各参数的选取方法以及多普勒频偏估计的性能。 A technique based on DFT was discussed,which can fast estimate large Doppler frequency shift in direct sequence spread spectrum system.After analyzing the SNR before and after DFT process module,and the PDF of DFT's output,the paper deduced theoretically the false alarm probability,detection threshold,detection probability and the relationship in frequency domain.A practical example applied in LEO satellite system illustrated how to choose parameters and the performance of the technique.
出处 《宇航学报》 EI CAS CSCD 北大核心 2008年第2期648-652,共5页 Journal of Astronautics
关键词 低轨卫星 多普勒频偏 直接序列扩频 DFT LEO Doppler shift DSSS DFT
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参考文献8

  • 1[1]Grant P M,Spangerberg S M,Scott I,et al.Doppler estimation for fast acquisition in spread spectrum communication systems[J].Proc.IEEE ISSSTA,1998(1):542-560.
  • 2[4]Viterbi A J.Principles of Coherent Communications[M].New York,McGraw-hill,1966.
  • 3[5]Kaplan E D.Understanding GPS Principles and Applications[M].U.S.A,Artech,1996.
  • 4[6]Nezami M K.Synchronization in Wireless Communication Systems[M].Boston,Artech,2003.
  • 5[7]Stirling-Gallacher R A,Hulbert A P,Povey G J R.A fast acquisition technique for a direct sequence spread spectrum signal in the presence of a large doppler shift[J].Prod.IEEE ISSSTA,1996(1):22-25.
  • 6[8]Cheng U,Hurd W J,Statman J l.Spread-spectrum code acquisition in the presence of doppler shift and data modulation[J].IEEE Trans.Commun.,1990,38(2).
  • 7[9]XU Yang,XiaoWei Cui,MingQuan Lu,et al.Carrier recovery using FFT and Kalman filter[J].Proc.IEEE ISPA,2003(2):18-20.
  • 8[10]Rife D C,Boorstyn R R.Single-tone parameter estimation from discrete-time observations[J].IEEE Trans.Inform.Theory,1974,20(9):591-598.

同被引文献25

  • 1蔡觉平,宋文涛,李赞.瑞利衰落信道中移动OFDM的Doppler Spread估计[J].电波科学学报,2004,19(5):591-595. 被引量:4
  • 2李立霞,王文博,王德隽.周期平稳信号处理及其应用[J].电子科学学刊,1996,18(3):310-316. 被引量:5
  • 3卫星移动多媒体广播传输体制(标准)[S].中国移动多媒体广播技术(CMMB)研究工作组,2006,10.
  • 4ETSI, EN300744, Digital Video Broadcasting (DVB): Framing structure, channel coding and modulation for terrestrial television [S] , 2004.
  • 5JEAN PAUL, M G LINNARTZ. Performance analysis of synchronous multi-carrier in mobile rayleigh channel with delay and doppler spreads[ J]. IEEE Transaction on Vehicular Technology, 1999, 48(5) : 1584 -1595.
  • 6ITU "Systems for digital satellite broadcasting to vehicular, portable and fixed receivers in the bands allocated to BSS (sound) in the frequency range 1 400 - 2 700 MHz" ( Question ITU-R 93/ 10). Recommendation[ S] ITU-R BO. 1130 -4, 2001.
  • 7Recommendation ITU-R M. 1225, Guidelines for evaluation of radio transmission technology for IMT2000[ S]. , 1997.
  • 8YOUNG CHAI K, GIBONG JEONG. Doppler spread estimation in mobile communication systems[ C ]. IEEE Vehicular Technology, 2002 : 1941 - 1945.
  • 9Cheng U, Hurd W J, Statman J l. Spread-spectrum Code Acquisition in the Presence of Doppler Shift and Data Modulation[J]. IEEE Trans. on Communications, 1990, 38(2): 241-250.
  • 10Stirling-Gallacher R A, Hulbert A P, Povey G J R. A Fast Acquisition Technique for a Direct Sequence Spread Spectrum Signal in the Presence of a Large Doppler Shift[C]//Proc. of the 4th International Symposium on Spread Spectrum Techniques and Applications. [S. l.]: IEEE Press, 1996: 156-160.

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